Within Four Corners of the United States, which unit of the National Park Service has ruins of the indigenous tribes and is within the boundaries of the Navajo Nation?
Canyon de Chelly National Monument
-1
Section::::Abstract.
Four Corners
432420
-1
Section::::Abstract.
Canyon de Chelly National Monument
1250742
-1
Section::::Abstract.
Canyon de Chelly National Monument
1250742
-1
Section::::Abstract.
Canyon de Chelly National Monument
1250742